Re^2: What operator should perl5porters use for safe dereferencing?

in reply to Re: What operator should perl5porters use for safe dereferencing?
in thread What operator should perl5porters use for safe dereferencing?

I think ~ is assigned to regex match already?

No, see perlop

Binary "=~" binds a scalar expression to a pattern match. 
Binary "!~" is just like "=~" ...
Binary "~~" does a smart match between its arguments.
Unary "~" performs bitwise negation
""->"" is an infix dereference operator, just as it is in C and C++.
nonassoc    < > <= >= lt gt le ge
[download]

so currently ~> is a syntax error, you can't have unary operator bitwise-negation follow greater than operator, so ~> is free and open for use with no possibility of confusion with anything else

Also, neither > nor ~ nor ~> nor -> are sigils, sigils are $ % @ * as in $ro %sham @bo *dynamite

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Re^3: What operator should perl5porters use for safe dereferencing? by xiaoyafeng (Hermit) on Jun 05, 2012 at 10:16 UTC
Thanks for your correction! But the 3 first main usages of ~ is about match. I suggest ?-> is I believe the one of advantages which perl6 is better than perl5 is its consistency. take a look below: ~ means string, so ~$foo change $foo into string context, and $foo1 ~ $foo2 make a concatenation. +/- means numeric, so +$foo change $foo into numeric context and $foo + 3 is doing mathematic operation. and ? means bool, * means global etc....... as we see, in perl6, every sigil has its own consistent meaning and easily for learning. I don't say ~> is bad, I just want every new grammar/op adding during perl5 evolved should keep consistent. I am trying to improve my English skills, if you see a mistake please feel free to reply or /msg me a correction	[reply]
Re^4: What operator should perl5porters use for safe dereferencing? by BrowserUk (Pope) on Jun 05, 2012 at 12:37 UTC
I don't say ~> is bad, I just want every new grammar/op adding during perl5 evolved should keep consistent. Too late. Tilde already has a full house of contextual overloads: `print ~'fred';; ÖìÜø print ~12345;; 18446744073709539270 print ~( 2 != 2 );; 18446744073709551615 print ~~( '2' eq '2' );; 1 ~\'fred';; ¼╝¥│¥¡Î¤ç═ã╩×¤ÃÍ` [download] One more is neither here nor there. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply] [d/l]
Re^4: What operator should perl5porters use for safe dereferencing? by Anonymous Monk on Jun 06, 2012 at 03:05 UTC
as we see, in perl6, every sigil has its own consistent meaning and easily for learning ~ is not a sigil. Its not a sigil in perl5 and its not a sigil in perl6. Also, perl5 is not perl6	[reply]


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Re^2: What operator should perl5porters use for safe dereferencing?

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